The Marquardt JournalIndependent practice
San Diego, California

Frontend engineer · Available for work

Anthony
Marquardt.

Interfaces with character.
Systems built to last.

Sixty-four copper contour lines forming a rippled circular printing plate
Plate I — Continuity64 contours / SVG

01 / The practice

Care, at every scale.

From the smallest component to the system it belongs to.

Eight-plus years building production web and mobile applications, from reusable interface libraries to products released on the App Store and Google Play.

React, React Native, and TypeScript. Experience across fintech, healthcare, advertising, and SaaS.

Poll Everywhere / 2014–2017

260K+

Downloads of the Google Slides extension

One library.
Many places to belong.

Primary developer and maintainer of the cross-application UI component library. Led architecture and deployments, maintained the mobile app through store releases, and built desktop integrations.

Chorus Innovations / 2022–2023

Reusable interfaces.
Real-world constraints.

Built React, React Native, and TypeScript screens for a healthcare platform in a HIPAA-regulated environment. Documented reusable components in Storybook and tested them with Jest.

Aspiration / 2020–2022

From signup to shipment.

Owned the frontend of a new credit-card signup funnel, from design collaboration through release. Standardized foundational libraries across the project.

i.

Banter ↗

An LLM conversation UI, a Python probe, and a Rust spine connected by shared contracts and diffable evaluations.

ii.

Spark ↗

Local inference orchestration with configuration as data, Keychain-backed secrets, and bounded auto-recovery.

iii.

Component Library

A React + Tailwind v4 kit for Cascade Tree. Panels, badges, tooltips, and pure-SVG charts.

The next chapter

Let’s make good work.